A nonlinear inequality is a mathematical expression that involves variables raised to powers other than one, or products of variables, and establishes a relationship where one side is not simply greater than or less than the other. This type of inequality can represent constraints in optimization problems where relationships are more complex than linear, often leading to curved feasible regions instead of straight lines. Nonlinear inequalities are important in understanding how changes in one variable can affect others in scenarios such as resource allocation or utility maximization.
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